I've decided to advertise my site in several eZines. I found a few of them and I emailed asking them what's the rate, circulation, etc. The question is: How do I check if the circulation that eZine owner said is correct and he's not lying. I mean, one of the eZines said that they have 10000 subscribers, but they are located on tripod and their subscribe form is from Freedback.com... I wonder if they have 50 subscribers at all.
Anyway, I don't wanna waste my money on some eZine that doesn't has what they say... what do I do?